Unpaid Loss and Loss Adjustment Expenses Vehicle service agreements (tables) (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| Liability for Claims and Claims Adjustment Expense [Line Items] | ||
| Balance at beginning of period | $ 2,975 | |
| Balance at end of period | 2,975 | $ 2,975 |
| Other Insurance Product Line [Member] | ||
| Liability for Claims and Claims Adjustment Expense [Line Items] | ||
| Balance at beginning of period | 2,975 | 3,128 |
| Current year | 5,757 | 6,773 |
| Prior years | 0 | 0 |
| Current year | 5,757 | 6,866 |
| Prior years | 0 | 60 |
| Balance at end of period | $ 2,975 | $ 2,975 |